A couple of thoughts for Travis. One is that I have a writer friend (who, in my estimation, will take the world by storm once more of his works find their way to the commercial market) who experiments writing longhand on some project, typing on others. I am sure that he is not the only one! If I'm away from my computer, I'm certainly more likely to write my projects longhand than rely on a touchscreen keyboard (one of the reasons the iPad has no appeal for me). But for me, I prefer typing, as it feels like there is less between me and the word. When I write longhand, there's much more of a physical act of writing, of placing words on the page. Because touch-typing for me is nearly instinctual at this point, it's so ingrained in me, I don't think about the action
of typing -- I think about the words, and the story, and I'm able to get lost in them in a way that longhand never quite accomplished for me.
As a reader, I notice few differences in reading on my e-reader vs. the printed page. The first is that I can read one-handed -- which was crucial to my being able to keep up with my reading as a new mom! I find the sensation of holding the nook to be more comfortable than holding a print book. I tend to read at the same speed -- possibly a little faster (or it just feels that way because there are more page turns) -- on the nook as I do with print, unless the formatting for the document I'm reading isn't terribly well suited for the reader. (Some pdfs and epubs give it trouble, creating more page breaks than the screen itself would demand.) Even then, as soon as I've gotten into the story, I forget the formatting issue and feel myself absorbed in material. I will say that I haven't particularly enjoyed reading comics on my nook (I have the e-ink one, not the color version), and I think that some of the art from books like, say, Where the Mountain Meets the Moon, lost something in being on the display rather than on the printed page.
I wonder if some of the distinction in enjoyment might come from how much of one's life a reader has spent reading on a screen as compared to print. I've been writing stories on a keyboard since about the sixth grade -- first on an electronic typewriter (for a single major project that I can recall), and after that on a Commodore 64. More than half of my life, I've been accustomed to reading on a screen (though I vastly prefer the e-ink display and its likeness to paper to reading off of a monitor!). I would wager that my daughter, who will have lived her whole life with an e-reader in the house, will notice even *less* difference between print and electronic reading experiences, as she'll be exposed to both.
But these are just thoughts and ideas based on my personal experiences, not on any vast amount of study or even observation of younger readers. :)